CN101625170A - Low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system - Google Patents
Low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system Download PDFInfo
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- CN101625170A CN101625170A CN200910069958A CN200910069958A CN101625170A CN 101625170 A CN101625170 A CN 101625170A CN 200910069958 A CN200910069958 A CN 200910069958A CN 200910069958 A CN200910069958 A CN 200910069958A CN 101625170 A CN101625170 A CN 101625170A
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Abstract
The invention discloses a low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system, aiming at providing a refrigerating system which can enhance the refrigerating capacity and input power of the refrigerating system so as to improve COP of the system. The outlet of a vaporizer is connected with the low pressure vapor inlet of a low pressure level compressor, the outlet of the low pressure level compressor is in paralleled connection with the intermediate temperature refrigerant outlet of an intermediate cooler followed by being connected with the inlet of a high pressure level compressor, the outlet of the high pressure level compressor is connected with the inlet of a condenser, one path of the outlet of the condenser is connected with the inlet of an intermediate cooler coil, the outlet of the intermediate cooler coil is connected with the supercooling liquid inlet of a flash evaporator, the gas outlet of the flash evaporator is connected with the make-up gas opening of a low pressure level compressor through a first electronic expansion valve, the liquid outlet of the flash evaporator is connected with the inlet of the vaporizer through the second electronic expansion valve, and the other path of the outlet of the condenser is connected with the box body port of the intermediate cooler through a throttle. The invention can meet the requirement of low temperature and realize the aim of energy saving.
Description
Technical field
The present invention relates to a kind of refrigeration system, in particular, relate to a kind of low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system.
Background technology
Refrigeration system is the operation of the hottest period in 1 year generally, and environment temperature is high more, and system's pressure reduction, Energy Efficiency Ratio are low more, so the operational factor of system is with variation of ambient temperature, and the refrigerating capacity of requirement also changes.
At present, general refrigeration system is common two-stage vapor compression type refrigerating system, when summer operation, because outdoor temperature temperature is higher, cause system's pressure reduction bigger, refrigerating capacity is descended, and compressor power consumption is excessive, requires can't satisfy the demands under the bigger situation in, refrigerating capacity lower to the environment temperature requirement.
Summary of the invention
The present invention is in order to overcome weak point of the prior art, a kind of refrigerating capacity and input power that can effectively improve refrigeration system is provided, and, the increase rate of refrigerating capacity is greater than the increase rate of power, thereby improve the COP of system, the low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system that cuts down the consumption of energy.
The present invention is achieved through the following technical solutions:
A kind of low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system, it is characterized in that, comprise the low-pressure stage compressor, condenser, evaporimeter, the hiigh pressure stage compressor, intercooler, flash vessel, the outlet of evaporimeter is connected with the low-pressure steam import of low-pressure stage compressor, be connected with the import of hiigh pressure stage compressor after the middle temperature refrigerant outlet parallel connection of the outlet of low-pressure stage compressor and intercooler, the outlet of hiigh pressure stage compressor is connected with the import of condenser, the outlet one tunnel of condenser is connected with the import of intercooler coil, the outlet of intercooler coil is connected with the subcooled liquid import of flash vessel, the gas vent of flash vessel is connected with the gas supplementing opening of low-pressure stage compressor by first electric expansion valve, the liquid outlet of flash vessel is connected with the import of evaporimeter by second electric expansion valve, and another road of the outlet of condenser is connected with the casing interface of intercooler by choke valve.
The present invention has following technique effect:
1, refrigeration system of the present invention is beaten mouth and is carried out tonifying Qi in the middle of the low-pressure stage compressor, increased the air compensating system that is made of flash vessel at the low pressure compression section.Obtained fully crossing cold saturated gas by what flash vessel came out, its temperature is starkly lower than the temperature of low-pressure stage compressor air suction implication body, after two strands of gases mix, temperature obviously reduces, thereby reduced the delivery temperature of low-pressure stage compressor, can effectively improve the refrigerating capacity and the input power of refrigeration system, make environment temperature reach lower level, satisfy requirement of low temperature.And the increase rate of refrigerating capacity is greater than the increase rate of power, thereby the COP of raising system cuts down the consumption of energy, and reaches purpose of energy saving.
2, refrigeration system of the present invention adopts flash vessel mouth throttle system, can effectively improve compression process.
Description of drawings
Fig. 1 is the schematic diagram of low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments to the detailed description of the invention.
Fig. 1 is the schematic diagram of low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system of the present invention, comprise low-pressure stage compressor 1, condenser 3, evaporimeter 8, hiigh pressure stage compressor 2, intercooler 4, flash vessel 5, the outlet of evaporimeter 8 is connected with the low-pressure steam import of low-pressure stage compressor 1, be connected with the import of hiigh pressure stage compressor 2 after the middle temperature refrigerant outlet parallel connection of the outlet of low-pressure stage compressor 1 and intercooler 4, the outlet of hiigh pressure stage compressor 2 is connected with the import of condenser 3, the outlet one tunnel of condenser 3 is connected with the import of intercooler coil, the outlet of intercooler coil is connected with the subcooled liquid import of flash vessel 5, the gas vent of flash vessel 5 is connected with the gas supplementing opening of low-pressure stage compressor by first electric expansion valve 6, the liquid outlet of flash vessel 5 is connected with the import of evaporimeter 8 by second electric expansion valve 7, and another road of the outlet of condenser 3 is connected with the casing interface of intercooler 4 by choke valve 9.
The low-pressure steam that evaporimeter 8 produces is at first sucked by low-pressure stage compressor 1, and after obtaining of being come out by flash vessel 5 fully crossed cold saturated gas and mixed, temperature obviously reduced, thereby has reduced the delivery temperature of low-pressure stage compressor.The lower medium temperature and medium pressure gas of the temperature of discharging from low-pressure stage compressor 1 with come out from middle cooler 4 enter hiigh pressure stage compressor 2 after the warm refrigerant mixed, the high temperature high pressure liquid of discharging from hiigh pressure stage compressor 2 enters condenser 3 and is condensed into liquid, the liquid that comes out from condenser 3 is divided into two-way, one road intercooler 4 inner coil pipes of flowing through, in coil pipe, evaporated and be cooled (cold excessively) by the liquid outside the coil pipe, the subcooled liquid that comes out from middle coil pipe in cooler enters flash vessel 5, in flash vessel 5, the cold-producing medium that is evaporated to gaseous state enters low-pressure stage compressor 1 from low-pressure stage compressor gas supplementing opening and finishes the tonifying Qi process after the first electric expansion valve throttling.Another road choke valve 9 of flowing through enters in the intercooler casing, and the liquid after the throttling evaporates in intercooler 4 casings.The abundant cold excessively high pressure liquid refrigerant of the quilt of flash vessel 5 lower ends enters evaporimeter 8 again through the liquid refrigerant of second electric expansion valve 7 throttling step-downs the becoming low-temp low-pressure.The carrying out that circulation goes round and begins again like this.Because the low-pressure steam that evaporimeter produces after fully the cold saturated gas of mistake mixed with obtaining of being come out by flash vessel 5, has reduced the delivery temperature of low-pressure stage compressor in the low-pressure stage compressor, can effectively improve the refrigerating capacity of refrigeration system.
Refrigeration system of the present invention is compared with common two stages of compression, has increased a tonifying Qi circuit cycle in low-pressure section, forms accurate three grades of compression refrigerating systems with original two stages of compression, can improve the refrigerating capacity of system, thereby increases the COP of system.
Although relate to a kind of low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system and carried out special description disclosed with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within the scope of the present invention.
Claims (1)
1, a kind of low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system, it is characterized in that, comprise the low-pressure stage compressor, condenser, evaporimeter, the hiigh pressure stage compressor, intercooler, flash vessel, the outlet of evaporimeter is connected with the low-pressure steam import of low-pressure stage compressor, be connected with the import of hiigh pressure stage compressor after the middle temperature refrigerant outlet parallel connection of the outlet of low-pressure stage compressor and intercooler, the outlet of hiigh pressure stage compressor is connected with the import of condenser, the outlet one tunnel of condenser is connected with the import of intercooler coil, the outlet of intercooler coil is connected with the subcooled liquid import of flash vessel, the gas vent of flash vessel is connected with the gas supplementing opening of low-pressure stage compressor by first electric expansion valve, the liquid outlet of flash vessel is connected with the import of evaporimeter by second electric expansion valve, and another road of the outlet of condenser is connected with the casing interface of intercooler by choke valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910069958A CN101625170A (en) | 2009-07-30 | 2009-07-30 | Low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910069958A CN101625170A (en) | 2009-07-30 | 2009-07-30 | Low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system |
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| CN101625170A true CN101625170A (en) | 2010-01-13 |
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| CN200910069958A Pending CN101625170A (en) | 2009-07-30 | 2009-07-30 | Low pressure level gas supplementing quasi-tertiary vapor compression type refrigerating system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455083A (en) * | 2010-11-03 | 2012-05-16 | 天津商业大学 | Multiple-effect combination system with complete CO2 working mediums for supermarket |
| CN103968477A (en) * | 2013-02-01 | 2014-08-06 | 珠海格力电器股份有限公司 | Air conditioner |
| CN105485949A (en) * | 2015-12-21 | 2016-04-13 | 珠海格力电器股份有限公司 | Refrigeration system and control method thereof |
| CN106595155A (en) * | 2016-11-28 | 2017-04-26 | 青岛海尔股份有限公司 | Pressure maintaining system and method of refrigerating system and refrigerating household appliance capable of maintaining pressure |
| CN110234940A (en) * | 2017-01-30 | 2019-09-13 | 比泽尔制冷设备有限公司 | Expansion cell for being encased in refrigerant circuit |
| CN110425761A (en) * | 2019-09-02 | 2019-11-08 | 珠海冰恬环境科技有限公司 | A kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control method |
| CN110617641A (en) * | 2018-06-20 | 2019-12-27 | 安徽美芝精密制造有限公司 | Air conditioning system and air conditioner |
| CN114857696A (en) * | 2022-06-02 | 2022-08-05 | 新科环保科技有限公司 | Magnetic suspension centrifugal air conditioning system |
-
2009
- 2009-07-30 CN CN200910069958A patent/CN101625170A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455083A (en) * | 2010-11-03 | 2012-05-16 | 天津商业大学 | Multiple-effect combination system with complete CO2 working mediums for supermarket |
| CN103968477A (en) * | 2013-02-01 | 2014-08-06 | 珠海格力电器股份有限公司 | Air conditioner |
| CN103968477B (en) * | 2013-02-01 | 2017-04-12 | 珠海格力电器股份有限公司 | Air conditioner |
| CN105485949A (en) * | 2015-12-21 | 2016-04-13 | 珠海格力电器股份有限公司 | Refrigeration system and control method thereof |
| CN106595155A (en) * | 2016-11-28 | 2017-04-26 | 青岛海尔股份有限公司 | Pressure maintaining system and method of refrigerating system and refrigerating household appliance capable of maintaining pressure |
| CN110234940A (en) * | 2017-01-30 | 2019-09-13 | 比泽尔制冷设备有限公司 | Expansion cell for being encased in refrigerant circuit |
| CN110617641A (en) * | 2018-06-20 | 2019-12-27 | 安徽美芝精密制造有限公司 | Air conditioning system and air conditioner |
| CN110425761A (en) * | 2019-09-02 | 2019-11-08 | 珠海冰恬环境科技有限公司 | A kind of comprehensive Cooling and Heat Source supply Optimization of Energy Saving system and its control method |
| CN114857696A (en) * | 2022-06-02 | 2022-08-05 | 新科环保科技有限公司 | Magnetic suspension centrifugal air conditioning system |
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Open date: 20100113 |